Tin contamination in sediments of Lake Zurich: source, spread, history and risk assessment.

Unlabelled: Industrial activities of a silk dyeing factory in Thalwil, on the shore of Lake Zurich, Switzerland, caused extreme Sn contamination of lake sediments. In this study, we determine the contamination source, spread, and age using a multiproxy approach. We used X-ray fluorescence spectroscopy (XRF) core scanning and further geochemical analyses to assess the contamination spreading and thickness in the sedimentary column.

Helical PHILOS plating in shaft humeral fractures with proximal extension: a safe choice using an anterior approach.

Helical plating for humeral shaft fractures has gained popularity in recent years as it avoids iatrogenic nerve damage. A total of 16 patients with humeral shaft fracture involving the metaphyseal proximal part were treated between Dicembrer 2016 and January 2023. Complications such as pseudarthrosis, infections and nerve lesions were investigated during the postoperative period.

Branched GDGT-based temperature calibrations from Central European lakes.

Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are common in lake sediments, where they are frequently employed to infer mean annual air temperatures (MAAT) or air temperatures of months above freezing (MAF) using the MBT' lipid paleothermometer. The reliable reconstruction of such temperatures, however, requires robust calibration functions. Here, we investigated brGDGT distributions in surface sediments from 41 freshwater lakes located along an altitudinal gradient across the Alps (Central Europe) and spanning a MAAT range from 1.

Do working length and proximal screw density influence the velocity of callus formation in distal tibia fractures treated with a medial bridge plate?

Introduction: Aim of our study was to evaluate the influence of working length and screw density on callus formation in distal tibial fractures fixed with a medial bridge plate.

Materials And Methods: 42 distal tibia fractures treated with a bridge plate were analyzed. Minimum follow-up was 12 months.

A two-window mini-open approach for suprapectoral tenodesis for traumatic ruptures of the long head of the biceps tendon.

Traumatic rupture of the long head of biceps tendon (LHBT) in the young is rare and it is often related to sports. We describe a technical note of a mini open supra-pectoral tenodesis fixed by the "ToggleLoc™" (Zimmer Biomet, Warsaw, IN, USA) and performed by a two-window approach. The proposed technique guarantees an optimal visualization with low risk of complications and without arthroscopic assistance.